Etymologies

presume +‎ -ably (Wiktionary)

Examples

Anyone with the faintest interest in philology will have spotted that ‘gryphon’, from which his surname presumably derives, is a Greek word for a mythical dragon which featured prominently in Persian folkore.

Soon the nation's first baseball team owner ever to be selected as president was outside the White House intoning that the "sport had been sullied" in what he called the presumably now gone "steroid era."

Alan Blinder's points include the proposition that we need to consider more than the "net" effect of offshoring, which presumably is taken as the net of employments (however measured) gained and employments lost.